Comment 17 for bug 2019160

On Tue, 16 May 2023, sergiodj at sergiodj dot net wrote:

> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109805
>
> --- Comment #12 from Sergio Durigan Junior <sergiodj at sergiodj dot net> ---
> Sorry, I have been busy with other things, but I'm paying attention to the
> developments here.
>
> I still have to test the workaround I suggested (passing -fdebug-prefix-map to
> LDFLAGS) more broadly, because I think I may have found at least one scenario
> where it doesn't work. Something else that's puzzling me is the fact that I
> don't see this behaviour everywhere; some packages do have the expected
> DW_AT_comp_dir even after being compiled with LTO enabled.

Yeah, it's clearly odd and we lack testsuite coverage completely.
Having small testcases that show cases that work and cases that do not
would be very useful in understanding the bits and how they do
(not) work together properly.